June weather forecast
Charleston, MS

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Weather in June

June, the first month of the summer in Charleston, is a tropical month, with temperature in the range of an average high of 89.2°F (31.8°C) and an average low of 70°F (21.1°C).

Temperature

As Charleston transitions into June, the average high-temperature is observed to slightly rise from a warm 81.1°F (27.3°C) in May to a hot 89.2°F (31.8°C). In Charleston, the average low-temperature during the month of June is a pleasant 70°F (21.1°C).

Heat index

The heat index value for June is evaluated at a scorching 105.8°F (41°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in June in Charleston is 73%.

Rainfall

In June, in Charleston, the rain falls for 10.9 days. Throughout June, 1.34" (34mm) of precipitation is accumulated. In Charleston, during the entire year, the rain falls for 113.7 days and collects up to 13.27" (337mm) of precipitation.

Snowfall

March through October are months without snowfall.

Daylight

With an average of 14h and 24min of daylight, June has the longest days of the year in Charleston.
On the first day of June in Charleston, Mississippi, sunrise is at 5:49 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:15 pm CDT.

Sunshine

June has the most sunshine of the year, with an average of 10.5h of sunshine.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 7 during June, leads to the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Charleston during June?

In June, the average high-temperature and low-temperature in Charleston, Mississippi, are 89.2°F (31.8°C) and 70°F (21.1°C) respectively. In June, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 105.8°F (41°C).

What is the average humidity in June in Charleston?

In June, the average relative humidity in Charleston, Mississippi, is 73%.

How many days does it rain in June in Charleston?

In Charleston, Mississippi, in June, during 10.9 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow in Charleston?

In Charleston, snow does not fall in March through October.

When are the longest days in Charleston?

With an average of 14h and 24min of daylight, June has the longest days of the year.

What is the average length of the day in June in Charleston?

The average day length in June in Charleston, Mississippi, is 14h and 23min.

When is the sunrise / sunset in June in Charleston?

On the first day of June in Charleston, sunrise is at 5:49 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:15 pm CDT.

What month has the most sunshine in Charleston?

The month with the most sunshine is June, with an average of 10.5h of sunshine.

How long on average sun shines in June in Charleston?

In June, the average sunshine duration is 10.5h.

When is the highest UV index in Charleston?

The months with the highest UV index in Charleston are June and July, with an average maximum UV index of 7.

What is the UV index reading in June in Charleston?

In Charleston, the average daily maximum UV index in June is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Charleston, MS

Average temperature in June - Charleston, MS
  • Average high temperature in June: 89.2°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (50°F).

  • Average low temperature in June: 70°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).

Average pressure in June
Charleston, MS

Average pressure in June - Charleston, MS
  • Average pressure in June: 29.95"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in June
Charleston, MS

Average wind speed in June - Charleston, MS
  • Average wind speed in June: 5.7mph

The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in June
Charleston, MS

Average humidity in June - Charleston, MS
  • Average humidity in June: 73%

The months with the highest relative humidity are February, March and December (79%).
The month with the lowest relative humidity is October (69%).

Average rainfall in June
Charleston, MS

Average rainfall in June - Charleston, MS
  • Average rainfall in June: 1.34"

The wettest month (with the highest rainfall) is July (1.57").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in June
Charleston, MS

Average rainfall days in June - Charleston, MS
  • Average rainfall days in June: 10.9 days

The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (5.3 days).

Average snowfall in June
Charleston, MS

Average snowfall in June - Charleston, MS
  • Average snowfall in June: 0"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in June
Charleston, MS

Average snowfall days in June - Charleston, MS
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

Average daylight in June /
Average sunshine in June
Charleston, MS

Average daylight in June / Average sunshine in June - Charleston, MS
  • Average daylight in June: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in June: 10h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in June
Charleston, MS

Average sunshine days in June - Charleston, MS
  • Average sunshine days in June: 16.7 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (13.5 days).

Average UV index in June
Charleston, MS

Average UV index in June - Charleston, MS
  • Average UV index in June: 7

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in June
Charleston, MS

Average cloud cover in June - Charleston, MS
  • Average cloud cover in June: 28

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 28).

Average visibility in June
Charleston, MS

Average visibility in June - Charleston, MS
  • Average visibility in June: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Charleston, Mississippi, USA

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